20122781

素因数分解:

$7^4\times {\mathrm{17}}^2\times {\mathrm{29}}^1$

素因数の和:91

約数の個数: 30

約数和(自身を含む): 25797210

約数和(自身を除く): 5674429

約数列:

[1, 7, 17, 29, 49, 119, 203, 289, 343, 493, 833, 1421, 2023, 2401, 3451, 5831, 8381, 9947, 14161, 24157, 40817, 58667, 69629, 99127, 169099, 410669, 693889, 1183693, 2874683, 20122781]

約数ペア:

[(1, 20122781), (7, 2874683), (17, 1183693), (29, 693889), (49, 410669), (119, 169099), (203, 99127), (289, 69629), (343, 58667), (493, 40817), (833, 24157), (1421, 14161), (2023, 9947), (2401, 8381), (3451, 5831)]